Portion of a shoe upper



FIG. 1 is a perspective view of a portion of a showing my new design;

FIG. 2 is a side elevational view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a front view thereof; and,

FIG. 5 is a rear view thereof.

The uneven broken line showing of the triangular area and the remainder of the shoe is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a portion of a shoe upper, as shown and described. 